Revision 192c7bd9
| b/linux-user/arm/syscall.h | ||
|---|---|---|
| 26 | 26 |
#define ARM_ORIG_r0 uregs[17] |
| 27 | 27 |
|
| 28 | 28 |
#define ARM_SYSCALL_BASE 0x900000 |
| 29 |
#define ARM_THUMB_SYSCALL 0 |
|
| 29 | 30 |
|
| 30 | 31 |
#define ARM_NR_cacheflush (ARM_SYSCALL_BASE + 0xf0000 + 2) |
| 31 | 32 |
|
| b/linux-user/main.c | ||
|---|---|---|
| 359 | 359 |
case EXCP_SWI: |
| 360 | 360 |
{
|
| 361 | 361 |
/* system call */ |
| 362 |
insn = ldl((void *)(env->regs[15] - 4)); |
|
| 363 |
n = insn & 0xffffff; |
|
| 362 |
if (env->thumb) {
|
|
| 363 |
insn = lduw((void *)(env->regs[15] - 2)); |
|
| 364 |
n = insn & 0xff; |
|
| 365 |
} else {
|
|
| 366 |
insn = ldl((void *)(env->regs[15] - 4)); |
|
| 367 |
n = insn & 0xffffff; |
|
| 368 |
} |
|
| 369 |
|
|
| 364 | 370 |
if (n == ARM_NR_cacheflush) {
|
| 365 | 371 |
arm_cache_flush(env->regs[0], env->regs[1]); |
| 366 | 372 |
} else if (n == ARM_NR_semihosting |
| 367 | 373 |
|| n == ARM_NR_thumb_semihosting) {
|
| 368 | 374 |
env->regs[0] = do_arm_semihosting (env); |
| 369 |
} else if (n >= ARM_SYSCALL_BASE) {
|
|
| 375 |
} else if (n >= ARM_SYSCALL_BASE |
|
| 376 |
|| (env->thumb && n == ARM_THUMB_SYSCALL)) {
|
|
| 370 | 377 |
/* linux syscall */ |
| 371 |
n -= ARM_SYSCALL_BASE; |
|
| 378 |
if (env->thumb) {
|
|
| 379 |
n = env->regs[7]; |
|
| 380 |
} else {
|
|
| 381 |
n -= ARM_SYSCALL_BASE; |
|
| 382 |
} |
|
| 372 | 383 |
env->regs[0] = do_syscall(env, |
| 373 | 384 |
n, |
| 374 | 385 |
env->regs[0], |
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